Ivan

Hi Jack What type of bush will you use for the Watts linkage pivot - a roller bearing or a bronze bush?

Thanks for the reply - I get it now http://www.usa7s.com/aspnetforum/images/emoticons/smile5.gif.

Hi Jack I really like your design and think it’s real neat! Just one thing puzzles me from the drawing – the fore and aft Watts links restrain the tube to almost pure vertical movement whilst the lower A arm seems to force the tube into radial movement, this will cause torsion and bending moments in the tube or am I miss-reading the drawing or is there a detail that’s not visible on the drawing.